From: Jeffle Xu <[email protected]>
To: [email protected], [email protected]
Cc: [email protected], [email protected],
[email protected], [email protected], [email protected],
[email protected]
Subject: [PATCH v3 06/11] block/mq: add iterator for polling hw queues
Date: Mon, 8 Feb 2021 16:52:38 +0800 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
Add one helper function for iterating all hardware queues in polling
mode.
Signed-off-by: Jeffle Xu <[email protected]>
---
include/linux/blk-mq.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index cf1910c6d5ae..0c511555ec16 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -574,6 +574,13 @@ static inline void *blk_mq_rq_to_pdu(struct request *rq)
for ((i) = 0; (i) < (q)->nr_hw_queues && \
({ hctx = (q)->queue_hw_ctx[i]; 1; }); (i)++)
+#define queue_for_each_poll_hw_ctx(q, hctx, i) \
+ for ((i) = 0; ((q)->tag_set->nr_maps > HCTX_TYPE_POLL) && \
+ (i) < (q)->tag_set->map[HCTX_TYPE_POLL].nr_queues && \
+ ({ int __idx = (q)->tag_set->map[HCTX_TYPE_POLL].queue_offset + (i); \
+ hctx = (q)->queue_hw_ctx[__idx]; 1; }); \
+ (i)++)
+
#define hctx_for_each_ctx(hctx, ctx, i) \
for ((i) = 0; (i) < (hctx)->nr_ctx && \
({ ctx = (hctx)->ctxs[(i)]; 1; }); (i)++)
--
2.27.0
next prev parent reply other threads:[~2021-02-08 8:57 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-08 8:52 [PATCH v3 00/11] dm: support IO polling Jeffle Xu
2021-02-08 8:52 ` [PATCH v3 01/11] block: move definition of blk_qc_t to types.h Jeffle Xu
2021-02-08 8:52 ` [PATCH v3 02/11] block: add queue_to_disk() to get gendisk from request_queue Jeffle Xu
2021-02-08 8:52 ` [PATCH v3 03/11] block: add poll method to support bio-based IO polling Jeffle Xu
2021-02-08 8:52 ` [PATCH v3 04/11] block: add poll_capable " Jeffle Xu
2021-02-08 8:52 ` [PATCH v3 05/11] block/mq: extract one helper function polling hw queue Jeffle Xu
2021-02-08 8:52 ` Jeffle Xu [this message]
2021-02-08 8:52 ` [PATCH v3 07/11] dm: always return BLK_QC_T_NONE for bio-based device Jeffle Xu
2021-02-08 8:52 ` [PATCH v3 08/11] dm: fix iterate_device sanity check Jeffle Xu
2021-02-08 8:52 ` [PATCH v3 09/11] dm: support IO polling for bio-based dm device Jeffle Xu
2021-02-09 3:11 ` Ming Lei
2021-02-09 6:13 ` JeffleXu
2021-02-09 6:22 ` JeffleXu
2021-02-09 8:07 ` Ming Lei
2021-02-09 8:46 ` JeffleXu
2021-02-19 14:17 ` [dm-devel] " Mikulas Patocka
2021-02-24 1:42 ` JeffleXu
2021-02-26 8:22 ` JeffleXu
2021-02-08 8:52 ` [PATCH v3 10/11] nvme/pci: don't wait for locked polling queue Jeffle Xu
2021-02-08 8:52 ` [PATCH v3 11/11] dm: fastpath of bio-based polling Jeffle Xu
2021-02-19 19:38 ` [dm-devel] " Mikulas Patocka
2021-02-26 8:12 ` JeffleXu
2021-03-02 19:03 ` Mikulas Patocka
2021-03-03 1:55 ` JeffleXu
2021-02-17 13:15 ` [PATCH v3 00/11] dm: support IO polling JeffleXu
2021-03-10 20:01 ` Mike Snitzer
2021-03-11 7:07 ` [dm-devel] " JeffleXu
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